OpenTechnical

OT-2026-000006920

Publication integrity record

Vacuum cup gripper, two zone face, common isolation valve, ejector fed, pressure verified, rubber cups

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000006920) never changes.

Identity and time

Publication numberOT-2026-000006920 · never reused
Internal UUID01a0a96c-5971-7035-804e-c34fa51f76c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:54:05.430121Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006920
StatusPUBLIC

Content hashes

Canonical text5dc08327724bab3319e8e7e52e102d1e11b97a7590dce3f7fb806cac75c85233
Markdownc6b31659a4742f7018a404fec393442735cce92d99c4ee86ec2a51bfeaaaf7c4
PDF
Publication page60765159278b3392e31fe913b1388f0e313959f890fb99fa7796ea5c03463f16
Manifest64ef835f89f546ffb0aa86f293edda9d866b9285badec5a810964b30c729ad9d

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureV5LfMi5+A4iy+dOWuZhLGxgU8EKnU0tOL/7u2gnCAvZ9pqJr/A2QctlfIxFYeNHiaFXiT3PW4VaHUoOjfTtgCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:21.939912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006920
observed 60765159278b3392e31fe913b1388f0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:21.926647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006920/manifest.json
observed 64ef835f89f546ffb0aa86f293edda9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:21.913593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006920/publication.md
observed c6b31659a4742f7018a404fec3934427...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:21.900688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006920/publication.txt
observed 5dc08327724bab3319e8e7e52e102d1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.